Patents-Review.com
ClassID:

143127 ⎘

F04B49/04 - CPC Classification

Classification description:

Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups  -  Regulating by means of floats

Recent Application in this class:
#1
20240209848
2024-06-27

Pumping system

 #2
20240183904
2024-06-06

SUMP/EJECTOR PUMP MONITOR AND SUMP/EJECTOR PUMP FAILURE WARNING SYSTEM

 #3
20230279850
2023-09-07

AUTOMATED PUMPING SYSTEM AND METHODS

 #4
20230213111
2023-07-06

Pump, multi-function valve, and controller apparatus

 #5
20220349398
2022-11-03

BASEMENT SUMP CONTROL SYSTEMS AND METHODS

 #6
20220290663
2022-09-15

Automated fluid transfer system

 #7
20220213886
2022-07-07

Downhole pumping tools

 #8
20220163369
2022-05-26

Tank maintenance access chamber

 #9
20220146171
2022-05-12

Compressor and refrigeration cycle device having the same

 #10
20220112891
2022-04-14

Sewage basin pump control support

 #11
20210311123
2021-10-07

Sump/ejector pump monitor and sump/ejector pump failure warning system

 #12
20210231117
2021-07-29

Well pump with float controlled check valves

 #13
20210230968
2021-07-29

Pump, multi-function valve, and controller apparatus

 #14
20200173407
2020-06-04

Fuel pump assembly

 #15
20200080525
2020-03-12

Fuel pump assembly

 #16
20200080524
2020-03-12

Fuel pump assembly

 #17
20190378670
2019-12-12

ADJUSTABLE ADD-ON APPARATUSES FOR A SWITCH AND ASSOCIATED METHODS

 #18
20190242374
2019-08-08

Sump pump control

 #19
20190234397
2019-08-01

Vertical-Shaft Sewage Pump with Anti-Collision Switch

 #20
20190195218
2019-06-27

Piston pump arrangement automatically disabling in absence of inlet liquid

 #21
20190195215
2019-06-27

Sewage basin pump control support

 #22
20190177961
2019-06-13

Pump-storage device and transportation tool including the same

 #23
20190126214
2019-05-02

Dispensing system

 #24
20190120234
2019-04-25

Water pumping control device and system

 #25
20190085840
2019-03-21

Autonomous submersible pump

 #26
20190056256
2019-02-21

Tank maintenance access chamber

 #27
20180291911
2018-10-11

Whole home water appliance system

 #28
20180245580
2018-08-30

Piston pump arrangement automatically disabling in absence of inlet liquid

 #29
20180202436
2018-07-19

Modular pneumatic well pump system

 #30
20180196097
2018-07-12

Sump/ejector pump monitor and sump/ejector pump failure warning system

 #31
20180142835
2018-05-24

Vent valve

 #32
20180128265
2018-05-10

Method of bypassing a float switch controlling a water pump

 #33
20180112821
2018-04-26

Autofill shutoff valve

 #34
20180111146
2018-04-26

Systems and methods for a material sensor for a material pump

 #35
20180106248
2018-04-19

Condensate pump

 #36
20180100620
2018-04-12

Centerfill of lubricant reservoir

 #37
20170248643
2017-08-31

Sump/ejector pump monitor and sump/ejector pump failure warning system

 #38
20160177932
2016-06-23

Pumping system for gaseous and liquid media

 #39
20150377231
2015-12-31

Pump for removing liquids from vessels under vacuum

 #40
20150355254
2015-12-10

Sump/ejector pump monitor and sump/ejector pump failure warning system

 #41
20150240803
2015-08-27

Sump pump monitoring device and method

 #42
20150086385
2015-03-26

METHOD FOR CONTROLLING PUMPING OF PUMP UNITS IN A WET WELL

 #43
20140127065
2014-05-08

Single and multi-chamber wellbore pumps for fluid lifting

 #44
20130087227
2013-04-11

Tank container with a pump assembly

 #45
20120291883
2012-11-22

Fluid level control mechanism

 #46
20120082571
2012-04-05

Fluid level control mechanism

 #47
20110061415
2011-03-17

Condensate pump

 #48
20100129232
2010-05-27

FLOAT DEVICE FOR A SEWAGE PUMP

 #49
20090129939
2009-05-21

Apparatus for thermal dissipation and retention of float

 #50
20090123296
2009-05-14

Water removal from a sump using pump and switching mechanism

 #51
20080286120
2008-11-20

Reciprocating piston pump operating on pressure medium

 #52
20080267791
2008-10-30

System for the Suction of a Fluid, Having the Additional Function of Sucking Another Fluid

 #53
20060239829
2006-10-26

Sewage handling system, cover, and controls

 #54
20060228222
2006-10-12

Sewage handling system, cover, and controls

 #55
20050271517
2005-12-08

Emergency automatic sump valve

 #56
15004488
2019-01-29

Pump switching device

 #57
13797216
2015-12-01

Electric or water powered sump pump